楼主用VC开发的话可以试试NTGraph控件，以前用过，还行
楼主能看懂鸟语的话猛击这里看详细信息：XXXXXXXXXXXXXXXXXXXXXXXXXX/Articles/3214/2D-Graph-ActiveX-Control ，里面有说可以用VB：
The same story for Visual Basic Users:

  With NTGraph1
       .PlotAreaColor = vbBlack
       .FrameStyle = Frame
       .Caption = ""
       .XLabel = ""
       .YLabel = ""
        
       .ClearGraph 'delete all elements and create a new one
       .ElementLineColor = RGB(255, 255, 0)
       .AddElement  ' Add second elements
       .ElementLineColor = vbGreen
      
       For X = 0 To 100
            Y = Sin(X / 3.15) * Rnd - 1
            .PlotY Y, 0
             Y = Cos(X / 3.15) * Rnd + 1
            .PlotXY X, Y, 1
            .SetRange 0, 100, -3, 3
        Next X
  End With
在百度文库上找到了个中文版：
NTGRAPH控件使用.docx 1021.49KB DOCX 22次下载